Question

Last one. Double check please.
In △PQR, what is the length of QR?

Answer 1

let the length of QR is x,
x sqrt(2) = 56
solve for x

Answer 2

Answer choices:
28
\[\sqrt{2}28\]
\[56\sqrt{3}\]
\[56\sqrt{2}\]

Answer 3

Oops 2nd answer is \[28\sqrt{2}\]

Answer 4

yup, that is :)

Answer 5

The 2nd answer is correct?

Answer 6

x sqrt(2) = 56
x = 56/sqrt(2) = 56/sqrt(2) * sqrt(2)/sqrt(2) = 56sqrt(2)/2 = 28sqrt(2)
correct :)

Answer 7

Thank you so much. :)

Answer 8

you're welcome